mirror of https://github.com/Hestia-Homes/Model.git synced 2026-06-08 11:17:27 +00:00

History

Khalim Conn-Kowlessar 0d552b5a22 slice S-B19: PV generation cost credit (SAP 10.2 Appendix M) Wires photovoltaic_arrays into the calculator as a per-kWh cost credit against the ECF numerator. Total annual PV kWh = sum(peak_power_kw) × 850 (UK-average yield per Appendix M, single national figure since ratings use UK-average weather per S-B18). Credit rate is Table 12 code 60 (PV export tariff) — 5.59 p/kWh under SAP spec prices, 13.19 p/kWh under cert-calibration prices. This is the first slice from the worksheet-driven phase (per user suggestion). PV was identified as a clear systemic gap that probe- driven iteration hadn't surfaced because only ~5-10% of certs have PV and the corpus probe is biased toward the most-frequent shapes. 100-cert: MAE 4.39 → 4.49 (small regression; bias -0.17 → -0.07) 300-cert: MAE 5.44 → 5.45 (essentially flat; bias 0.11 → 0.22) Net spec-correct, aggregate MAE neutral. The certs that DO have PV should see the right cost story now; ML residual will pick up the fidelity gap (no orientation/overshading/pitch on our yield). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>		2026-05-18 16:54:11 +00:00
..
src/domain	slice S-B19: PV generation cost credit (SAP 10.2 Appendix M)	2026-05-18 16:54:11 +00:00
pyproject.toml	slice 13: to_rows(properties) returns pd.DataFrame	2026-05-16 16:43:28 +00:00
README.md	added potential file scaffolding:	2026-05-15 10:56:53 +00:00

README.md

domna-domain

Shared domain types — Property, Properties, BaselinePerformance, Plan, PlanPhase, Scenario, ScenarioPhase, ScenarioSnapshot, Recommendation, OptimisedPackage, EpcPropertyData, etc.

Boundary: types only. No persistence, no IO, no business logic. Other packages and services depend on domna-domain; this package depends on nothing internal.

Domain definitions live in ../../CONTEXT.md. New types added here must match the glossary terms.

Layout

src/domain/
├── __init__.py
├── property.py             # Property, Properties, PropertyIdentity
├── site_notes.py
├── landlord_overrides.py
├── baseline_performance.py # lodged + effective pair (ADR-0004)
├── plan.py                 # Plan, PlanPhase, OptimisedPackage
├── scenario.py             # Scenario, ScenarioPhase, ScenarioSnapshot (ADR-0005)
├── recommendation.py
├── geospatial.py
├── solar.py
├── anomaly_flags.py
└── ml/
    ├── __init__.py
    ├── transform.py        # EpcMlTransform (versioned per §8.3)
    └── schema.py

When datatypes/epc/domain/ folds in, the EPC schema types move under src/domain/epc/.